1246589 has 2 divisors, whose sum is σ = 1246590. Its totient is φ = 1246588.

The previous prime is 1246579. The next prime is 1246591. The reversal of 1246589 is 9856421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1243225 + 3364 = 1115^2 + 58^2 .

It is a cyclic number.

It is not a de Polignac number, because 1246589 - 2⁴ = 1246573 is a prime.

Together with 1246591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1246529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623294 + 623295.

It is an arithmetic number, because the mean of its divisors is an integer number (623295).

2^1246589 is an apocalyptic number.

It is an amenable number.

1246589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246589 is an equidigital number, since it uses as much as digits as its factorization.

1246589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 35.

The square root of 1246589 is about 1116.5075010944. The cubic root of 1246589 is about 107.6236615506.

The spelling of 1246589 in words is "one million, two hundred forty-six thousand, five hundred eighty-nine".